import * as React from "react"

const MOBILE_BREAKPOINT = 768

export function useIsMobile() {
   const [isMobile, setIsMobile] = React.useState<boolean | undefined>(
      undefined,
   )

   React.useEffect(() => {
      const mql = window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT - 1}px)`)
      const onChange = () => {
         setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
      }
      mql.addEventListener("change", onChange)
      setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
      return () => mql.removeEventListener("change", onChange)
   }, [])

   return !!isMobile
}
